INDEX TO AMERICAN BOTANICAL LITERATURE 463 
Lichtin, A. The iron content of spinach. Am. Jour. Pharmacy 
96: 361-364. My 1924. 
Lindfors, T. Studien iiber den Entwicklungsverlauf bei einigen 
Rostpilzen aus zytologischen und anatomischen Gesichts- 
punkten. Svensk. Bot. Tidsk. 18: 1-84. f. 1-20. pl. 1-4. 
1924. 
Lloyd, C. G. Mycological Notes 7: 1237-1268. f. 2625-2768. 
Ja 1924. 
Lloyd, C. G. Professor A. H. R. Buller. Mycological Notes 7: 
1237. Ja 1924. [Portrait.] 
Longley, A. E. Cytological studies in the genus Crataegus. 
Am. Jour. Bot. 11: 295-317. f. 1-8. pl. 16-18. 17 My 1924. 
Longley, A. E., & Darrow, G. M. Cytological studies of diploid 
and polyploid forms in raspberries. Jour. Agr. Research 
27: 737-748. pl. 1-3. 8 Mr 1924. 
Lutz, F. E. Apparently non-selective characters and combina- 
tions of characters. Including a study of ultraviolet in 
relation to the flower-visiting habits of insects. Annals 
N. Y. Acad. Sci. 29: 181-283. pl. 3-9. 15 Ap 1924. 
Macbride, J. F. Spring wild flowers. Field Mus. Nat. Hist. 
Bot. Leaflet 7: 1-32. 1924. [Illust.] 
MacDougal, D. T. Growth in trees and massive organs of plants. 
Dendographic measurements. Carnegie Inst. Wash. Publ. 
350: 1-87. f. 1-19. My 1924. 
Macwatt, [J.] Notes on Primulas. American Primulas. Gar- 
den 88: 356. 24 My 1924. 
Mattoon, W. R. Black walnut. Where and how to plant it. 
Am. Forests and Forest Life 30: 347-348, 362. “Je’’ My 
1924. [Illust.] 
Maxon, W.R. Further notes on Hispaniola sie Jour. Wash- 
ington Acad. Sci. 14: 195-199. 4 My 1924. 
Including descriptions of new species in Danaea ( i eae (1), Pieris 
(1). 
Maxon, W.R. New or critical ferns from Haiti. Jour. wae 
ington Acad. Sci. 14: 86-92. 19 F 1924 
Including descriptions of new species in Adiantum (1), Cheilanthes «), 
Hypolepis (1), Dryopteris (2). 
